Scalp And Calvarial Vault Flashcards
Anterior fontanelle
Bregma (beginning)
Posterior fontanelle
Lambda (likod)
Pterion is junction of what bones
Frontal
Parietal
Squamous temporal
Greater sphenoid wing
Fiver layers of scalp
Skin Subcutaneous tissue Epicranial tissue Subaponeurotic tissue Pericranium
Most vascular scalp layer
Subcutaneous
Skull is composed of how many bones
28
Three major serrated fibrous joints /sutures that connect bones of vault
Coronal
Sagittal
Lambdoid
Internal occipital protuberance marks sinus confluence
Torcular herophili
Pachymeninges
Dura
Leptomeninges
Arachnoid
Pia
Potential space between dura
Epidural space
Potential space between inner dura and arachnoid
Subdural space
Normal CSF-filled space between arachnoid, pial-covered brain
Subarachnoid space
Potential space between pia, glia limitans of cortex
Subpial space
Pial-lined, interstitial fluid filled invagination along penetrating arteries
Perivascular space
Two layers of dura
Outer/periosteal
Inner/meningeal
Arachnoid villi/granulations are lined by
Endothelial extensions of arachnoid
Follows penetrating cortical arteries into brain that forms prevascular spaces/ Virchow-Robin-Spaces
Pia
Dura is most prominent where and thinnest where
Most prominent in the vertex, least prominent in under temporal bones
Arachnoid granulations are most prominent in
Transverse/sigmoid sinuses
Size of normal variant giant arachnoid granulation
Up to 1-2 cm
Meninge that does not invaginate sulci
Arachnoid
Layer of meninges that has regulatory interface between SAS, brain (exhibit pinocytosis, enzymatic activity)
Pia
Perivascular spaces are filled with
Interstitial fluid
